Nut-locking device.



W. P. MORGAN. NUT LOCKING DEVICE. APPLICATION I'I LED MAR. 10, 1911.

Patented Jan. 16, 1912.

WITNESSES ATTORNEK? @A% AT rrrcn.

NUT-LOCKING DEVICE.

Specification of Letters Ifatent.

Patented Jan. 16,1912.

Application filed March 10, 1911. Serial No. 613,553.

To all whom "it may concern:

Be it known that I, \VILLlAM F. MORGAN, a citizen of the United Statesof America, residing at Duquesne, in the county of Allegheny and Stateof Pennsylvania, have invented certain new and useful Improvements inNut-Locking Devices, of which the. following is a specification,reference being had therein to the accompanying drawing.

This invention relates to nut locks and the objects of my invention areto provide a nut locking device that will positively retain a nut upon abolt and prevent the accidental displacement of the same, and to providea nut locking device that can be advantageously used in connection withrail joints, rolling stock, bridges and other structures subjected tovibrations which have a tendency to remove nuts from bolts.

Further objects of my invention are to provide a nut locking device thatcan be easily and quickly installed without the use of skilled labor,and to provide a nut locking device that can be used in connection withthe present type of bolt.

I attain the above objects by a mechanical construction that is simple,durable and inexpensive to manufacture, and the device will behereinafter specifically described and then claimed.

Reference will now be had to the drawings, wherein Figure l is a sideelevation of the nut locking device. Fig. 2 is a longitudinal sectionalview of the same. Fig. 3 is a perspective view of a washer forming partof the device. Fig. 4 is an end view of the preferred form of nut. Fig.5 is a view of the rear side of the washer illustrated in Fig. 3. Fig. 6is. a perspective view of a modified form of nut, and Fig. 7 is aperspective View of a modified form of disk.

The reference numerals 1 and 2 denote, by the way of an example, twopieces of material having registering openings 3 adapted to receive abolt 4, said bolt having a head L 5 and an enlargement 6 engaging thepiece of material 2, whereby said bolt cannot rotate relatively to saidpiece of material. The

threaded end of the bolt 4 protrudes from the piece of material 1.

7. denotes a circular washer having an opening8 adapted to receive thebolt 4. The rear face of the washer 7 is provided with radially disposedribs 9 adapted to frictionally engage in the piece of material 1 andprevent said washer from rotating relatively to said piece of material.The front side of said washeris cut away, as at 10 to provide radiallydisposed teeth 11 for a purpose that will presently appear.

12 denotes a nut having a threaded bore 13 adapted to receive thethreaded end of the bolt 4 and this nut has the inner end thereofprovided with an annular enlarge ment 14 having a socket 15 with thebottom thereof cut away, as at 16 to provide radially disposed teeth 17.

18 denotes a disk made of rubber, soft lead or other yieldablematerial.This disk has a central opening 19 to receive the bolt 4 and isinterposed between the nut 12 and the washer 7. lVhen the nut 12 isrotated toengage the washer 7 the disk 18 is compressed and the materialthereof upset sufficiently to engage the teeth 11 of the washer 7 andthe teeth 17 of the nut- 12, thereby preventing the nut 12 from rotatingrelatively to the washer 7, except when a wrench or other instrument isemployed.

In Figs. 6 and 7 of the drawings there is illustrated a modification ofthe invention, wherein the nut 12 has the enlargement 14: thereofprovided with a compressible hexagonal shaped socket 20 and adapted tofit in this socket is a compressible hexagonal shaped disk' 21performing a similar function as the disk 18. The socket 20 can be ofany desired shape.

While in the drawings there are illustrated the preferred embodiments ofthe invention it is to be understood that the structural elementsthereof are susceptible to such changes as fall within the scope of theappended claim.

What I claim is A nut lock comprising a bolt, a washer having its rearface provided with radiallydisposed ribs adapted to enter the materialthrough which the bolt is adapted to pass, said washer having its otherface cut away to provide radially-disposed teeth, a nut mounted upon thescrew-threaded portion of the bolt and having its inner end providedwith an enlargement recessed to provide a socket, the bottom wall ofsaid socket cut-away to provide radially-disposed teeth, and a resilientdisk interposed and compressible between said nut and washer, extendinginto said socket and adapted when com:

In testimony whereof I afiix my signature in the presence of twoWitnesses.

WILLIAM F. MORGAN.

Witnesses:

MAX H. SRoLovI'rz, CHRISTINA T. Hoon.

